Mercurial > hg > orthanc
annotate Core/JobsEngine/JobsRegistry.h @ 2950:dc18d5804746
support of JobsHistorySize set to zero
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 30 Nov 2018 17:19:57 +0100 |
| parents | 251614c2edac |
| children | cb5d75143da0 |
| rev | line source |
|---|---|
| 2569 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017-2018 Osimis S.A., Belgium | |
| 6 * | |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #pragma once | |
| 35 | |
| 36 #if !defined(ORTHANC_SANDBOXED) | |
| 37 # error The macro ORTHANC_SANDBOXED must be defined | |
| 38 #endif | |
| 39 | |
| 40 #if ORTHANC_SANDBOXED == 1 | |
| 41 # error The job engine cannot be used in sandboxed environments | |
| 42 #endif | |
| 43 | |
| 44 #include "JobInfo.h" | |
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45 #include "IJobUnserializer.h" |
| 2569 | 46 |
| 47 #include <list> | |
| 48 #include <set> | |
| 49 #include <queue> | |
| 50 #include <boost/thread/mutex.hpp> | |
| 51 #include <boost/thread/condition_variable.hpp> | |
| 52 | |
| 53 namespace Orthanc | |
| 54 { | |
| 55 // This class handles the state machine of the jobs engine | |
| 56 class JobsRegistry : public boost::noncopyable | |
| 57 { | |
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58 public: |
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59 class IObserver : public boost::noncopyable |
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60 { |
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61 public: |
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62 virtual ~IObserver() |
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63 { |
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64 } |
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65 |
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66 virtual void SignalJobSubmitted(const std::string& jobId) = 0; |
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67 |
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68 virtual void SignalJobSuccess(const std::string& jobId) = 0; |
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69 |
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70 virtual void SignalJobFailure(const std::string& jobId) = 0; |
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71 }; |
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72 |
| 2569 | 73 private: |
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74 enum CompletedReason |
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75 { |
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76 CompletedReason_Success, |
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77 CompletedReason_Failure, |
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78 CompletedReason_Canceled |
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79 }; |
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80 |
| 2569 | 81 class JobHandler; |
| 82 | |
| 83 struct PriorityComparator | |
| 84 { | |
| 85 bool operator() (JobHandler*& a, | |
| 86 JobHandler*& b) const; | |
| 87 }; | |
| 88 | |
| 89 typedef std::map<std::string, JobHandler*> JobsIndex; | |
| 90 typedef std::list<JobHandler*> CompletedJobs; | |
| 91 typedef std::set<JobHandler*> RetryJobs; | |
| 92 typedef std::priority_queue<JobHandler*, | |
| 93 std::vector<JobHandler*>, // Could be a "std::deque" | |
| 94 PriorityComparator> PendingJobs; | |
| 95 | |
| 96 boost::mutex mutex_; | |
| 97 JobsIndex jobsIndex_; | |
| 98 PendingJobs pendingJobs_; | |
| 99 CompletedJobs completedJobs_; | |
| 100 RetryJobs retryJobs_; | |
| 101 | |
| 102 boost::condition_variable pendingJobAvailable_; | |
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103 boost::condition_variable someJobComplete_; |
| 2569 | 104 size_t maxCompletedJobs_; |
| 105 | |
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106 IObserver* observer_; |
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107 |
| 2569 | 108 |
| 109 #ifndef NDEBUG | |
| 110 bool IsPendingJob(const JobHandler& job) const; | |
| 111 | |
| 112 bool IsCompletedJob(JobHandler& job) const; | |
| 113 | |
| 114 bool IsRetryJob(JobHandler& job) const; | |
| 115 #endif | |
| 116 | |
| 117 void CheckInvariants() const; | |
| 118 | |
| 119 void ForgetOldCompletedJobs(); | |
| 120 | |
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121 void SetCompletedJob(JobHandler& job, |
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122 bool success); |
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123 |
| 2569 | 124 void MarkRunningAsCompleted(JobHandler& job, |
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125 CompletedReason reason); |
| 2569 | 126 |
| 127 void MarkRunningAsRetry(JobHandler& job, | |
| 128 unsigned int timeout); | |
| 129 | |
| 130 void MarkRunningAsPaused(JobHandler& job); | |
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131 |
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132 bool GetStateInternal(JobState& state, |
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133 const std::string& id); |
| 2569 | 134 |
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135 void RemovePendingJob(const std::string& id); |
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136 |
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137 void RemoveRetryJob(JobHandler* handler); |
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138 |
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139 void SubmitInternal(std::string& id, |
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140 JobHandler* handler); |
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141 |
| 2569 | 142 public: |
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143 JobsRegistry(size_t maxCompletedJobs) : |
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144 maxCompletedJobs_(maxCompletedJobs), |
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145 observer_(NULL) |
| 2569 | 146 { |
| 147 } | |
| 148 | |
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149 JobsRegistry(IJobUnserializer& unserializer, |
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150 const Json::Value& s, |
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151 size_t maxCompletedJobs); |
| 2569 | 152 |
| 153 ~JobsRegistry(); | |
| 154 | |
| 155 void SetMaxCompletedJobs(size_t i); | |
| 156 | |
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157 size_t GetMaxCompletedJobs(); |
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158 |
| 2569 | 159 void ListJobs(std::set<std::string>& target); |
| 160 | |
| 161 bool GetJobInfo(JobInfo& target, | |
| 162 const std::string& id); | |
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163 |
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164 void Serialize(Json::Value& target); |
| 2569 | 165 |
| 166 void Submit(std::string& id, | |
| 167 IJob* job, // Takes ownership | |
| 168 int priority); | |
| 169 | |
| 170 void Submit(IJob* job, // Takes ownership | |
| 171 int priority); | |
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172 |
| 2867 | 173 bool SubmitAndWait(Json::Value& successContent, |
| 174 IJob* job, // Takes ownership | |
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175 int priority); |
| 2569 | 176 |
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177 bool SetPriority(const std::string& id, |
| 2569 | 178 int priority); |
| 179 | |
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180 bool Pause(const std::string& id); |
| 2569 | 181 |
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182 bool Resume(const std::string& id); |
| 2569 | 183 |
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184 bool Resubmit(const std::string& id); |
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185 |
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186 bool Cancel(const std::string& id); |
| 2569 | 187 |
| 188 void ScheduleRetries(); | |
| 189 | |
| 190 bool GetState(JobState& state, | |
| 191 const std::string& id); | |
| 192 | |
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193 void SetObserver(IObserver& observer); |
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194 |
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195 void ResetObserver(); |
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196 |
| 2569 | 197 class RunningJob : public boost::noncopyable |
| 198 { | |
| 199 private: | |
| 200 JobsRegistry& registry_; | |
| 201 JobHandler* handler_; // Can only be accessed if the | |
| 202 // registry mutex is locked! | |
| 203 IJob* job_; // Will by design be in mutual exclusion, | |
| 204 // because only one RunningJob can be | |
| 205 // executed at a time on a JobHandler | |
| 206 | |
| 207 std::string id_; | |
| 208 int priority_; | |
| 209 JobState targetState_; | |
| 210 unsigned int targetRetryTimeout_; | |
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211 bool canceled_; |
| 2569 | 212 |
| 213 public: | |
| 214 RunningJob(JobsRegistry& registry, | |
| 215 unsigned int timeout); | |
| 216 | |
| 217 ~RunningJob(); | |
| 218 | |
| 219 bool IsValid() const; | |
| 220 | |
| 221 const std::string& GetId() const; | |
| 222 | |
| 223 int GetPriority() const; | |
| 224 | |
| 225 IJob& GetJob(); | |
| 226 | |
| 227 bool IsPauseScheduled(); | |
| 228 | |
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229 bool IsCancelScheduled(); |
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230 |
| 2569 | 231 void MarkSuccess(); |
| 232 | |
| 233 void MarkFailure(); | |
| 234 | |
| 235 void MarkPause(); | |
| 236 | |
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237 void MarkCanceled(); |
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238 |
| 2569 | 239 void MarkRetry(unsigned int timeout); |
| 240 | |
| 241 void UpdateStatus(ErrorCode code); | |
| 242 }; | |
| 243 }; | |
| 244 } |